Teambox, a platform of Saas applications for collaboration, file sharing and task management, raised $6.8 million from unnamed investors.

Integral Ad Science, which evaluates the quality of ad placements, raised $30 million in Series D funding. The round was led by August Capital, with existing investors participating.

Social media marketing company Spredfastraised $32.5 million in new funding in a round that was led by Lead Edge Capital, with Austin Ventures, InterWest Partners, and OpenView Partners also participating.